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Electrolytic cells

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By Expert Faculty of Sri Chaitanya
Question

A current of 2.0 A passed for 5 hr. through a molten metal salt deposits 22.2 g of metal (at. mass 177). The valency of the metal in the metal salt is:

Moderate
Solution

W=Eit96500

or E=W×96500it =22.2×965002×5×60×60=59.5 Valency = at. mass E=17759.5=3 

 


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